BumpOffset Node Produces Incorrect Results When Texture Coordinate Index Is Not 0

Rendering - Jan 18, 2019

When using the BumpOffset node, it will produce incorrect resultsi if the Texture Coordinate Index is not 0. Found in 4.20 CL# 4369336. 4.21 CL# 4613538, 4.22 CL# 4751672 ...

Niagara System User Parameters Resetting After Closing the Editor

Tools - Niagara - Jan 18, 2019

Niagara System user paramemters will reset upon restarting if they are used in a Blueprint. This also occurs to the system if you move the blueprint after making changes then pressing Ctrl+Z.  Foun ...

Left and Right eye render Ambient Occlusion differently

Virtual Reality - Jan 18, 2019

Ambient Occlusion appears to render differently in each eye when using the oculus rift. This give the user a cross eyed feeling ...

Dedicated server crashes when running a multi-process game in standalone with the Code Editor plugin enabled

Tools - Jan 17, 2019

Attempting to run a standalone server and client using different processes will crash if the Code Editor plugin is enabled. ...

Fatal error importing via Datasmith (memory allocation)

Enterprise - Datasmith - Revit - Jan 17, 2019

Trying to import a large Revit asset using Datasmith causes the system to use all of it's memory. Certain systems may receive a memory allocation error in the process. ...

Renaming a folder that contains a read-only asset from the Sources Panel causes the Content Browser and Sources Panel to desync

Tools - Jan 17, 2019

Renaming a folder that contains a Read-only asset from the Sources Panel causes the Content Browser and Sources Panel to desync. This causes the original folder (which should still exist since the E ...

Ensure on open if custom Project Setting has a reference to a Blueprint that constructs an object

Gameplay - Blueprint - Jan 16, 2019

An ensure is thrown when opening a project if a custom Project Setting has a reference to a Blueprint that constructs an object. The ensure can be found in the Callstack section below. Regression?: ...

BuildGraph builds some tools for Win32 even if Win32 is excluded from the build

DevTools - Jan 16, 2019

When creating a local binary build of the Engine using the BuildGraph, there are several tools that are built for Win32 even if Win32 was specifically excluded from the BuildGraph (ie. -set:WithWin3 ...

GPU Particle Preview Flickering with Distance Field Collision

Tools - Cascade - Jan 15, 2019

When switching from Scene Depth Collision to Distance Field Collision for a GPU particle system the preview window flickers, but returns back to normal when switching back to Scene Depth. Found in ...

Retargeting an Animation to a Skeleton with a Virtual Bone causes the Engine to crash

Anim - Animation - Jan 14, 2019

This crash occurs when trying to retarget an animation onto another skeleton with a retargeting rig that references a virtual bone. This issue could be similar to UE-37781 This issue was reported ...